Home / 143,565.28-215,348.73-127,843.18

Finding the Fourth Proportional to 143,565.28, 215,348.73 and 127,843.18

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Solution

The fourth proportional to 143,565.28, 215,348.73 and 127,843.18 is: 191,765.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,565.28 : 215,348.73 = 127,843.18 : x
  2. Step 2: Convert to fraction form
    143,565.28/215,348.73 = 127,843.18/x
  3. Step 3: Cross multiply
    143,565.28x = 215,348.73 × 127,843.18
  4. Step 4: Simplify right side
    143,565.28x = 27,530,866,452.16
  5. Step 5: Solve for x
    x = 27,530,866,452.16/143,565.28
  6. Step 6: Final answer
    x = 191,765.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.